City vs city
Charleston vs Isle of Palms, SC
Charleston currently scores 7 points higher overall than Isle of Palms, with the largest gap in hail.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Charleston: 60/100 · Isle of Palms: 53/100
Charleston is 7 points higher.
Flood
Charleston: 78/100 · Isle of Palms: 100/100
Isle of Palms is 22 points higher.
Charleston: FEMA NFHL flood zones: 28 features intersect this tile.
Isle of Palms: FEMA NFHL flood zones: 21 features intersect this tile.
Wind
Charleston: 51/100 · Isle of Palms: 53/100
Isle of Palms is 2 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Isle of Palms: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 49/100 · Isle of Palms: 43/100
Charleston is 6 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Isle of Palms: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 12/100 · Isle of Palms: 8/100
Charleston is 4 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Isle of Palms: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Isle of Palms: 43/100
Charleston is 57 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Isle of Palms: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 99/100 · Isle of Palms: 98/100
Charleston is 1 points higher.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Isle of Palms: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Charleston: 63/100 · Isle of Palms: 60/100
Charleston is 3 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Isle of Palms: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Charleston: 26/100 · Isle of Palms: 20/100
Charleston is 6 points higher.
Charleston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Isle of Palms: Air quality signal derived from the latest EPA AirNow combined AQI grid.